Ruling · Bhīṣma Dvādaśī · 1925

Thursday 5 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 454 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 4 February

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

0 of 48 minutes covered

Midday of Thursday 5 February

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

48 of 48 minutes covered

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 20:30 on Wed 4 Feb to 23:09 on Thu 5 Feb.

    1925-02-04T12:29:58Z → 1925-02-05T15:09:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 4th, 12:09–12:57 on the 5th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 27213 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1925: Thursday 5 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1925 falls on Thursday 5 February. Dvādaśī runs from 20:30 on Wed 4 Feb to 23:09 on Thu 5 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1925/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 5 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 5 Feb
compat-drikpanchangComparison profileThu 5 Feb
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/bhishma-dvadashi · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles04:30 → 07:0911:4348 min11:430 min4 Feb
Chicago06:30 → 09:0911:4148 min11:410 min4 Feb
Jersey City07:30 → 10:0911:4748 min11:470 min4 Feb
Port of Spain08:30 → 11:0911:5648 min11:560 min4 Feb
London12:30 → 15:0911:519 min11:5148 min4 Feb
Durban14:30 → 17:0911:460 min11:4648 min5 Feb
Dubai16:30 → 19:0912:090 min12:0948 min5 Feb
Delhi18:00 → 20:3912:110 min12:1148 min5 Feb
Kolkata18:00 → 20:3911:270 min11:2748 min5 Feb
Singapore19:30 → 22:0911:550 min11:5548 min5 Feb
Sydney22:30 → 01:0911:450 min11:4548 min5 Feb
Suva00:30 → 03:0911:560 min11:5648 min5 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
bhishma-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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